[PD] network send/receive patches

[vlada car]

hi, 
i am a complete newbie for Pd and am trying to build a pd patch that
will receive some data via network from the application my friend is
developing and that will primarily run on windows.
so, he is writing that under windows and i am trying to find out what
patch i can try to use and what kind of output windows' application
needs to send or what protocol we can use?
does anyone know any good starts or a tutorial link about this?

thanks a lot
v